Artur Skawina kirjoitti:
Kartsa wrote:
I was about to test the performance of vdr when I stumbled on this message
ERROR: /dev/dvb/adapter0/demux0: Too many open files
I do not recall seeing this earlier. This came when fourth simultaneous recording started.
grep -20 -r EMFILE * dvb/dvb-core/dmxdev.c-static int dvb_demux_open(struct inode *inode, struct file *file) dvb/dvb-core/dmxdev.c-{ dvb/dvb-core/dmxdev.c- struct dvb_device *dvbdev = file->private_data; dvb/dvb-core/dmxdev.c- struct dmxdev *dmxdev = dvbdev->priv; dvb/dvb-core/dmxdev.c- int i; dvb/dvb-core/dmxdev.c- struct dmxdev_filter *dmxdevfilter; dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- if (!dmxdev->filter) dvb/dvb-core/dmxdev.c- return -EINVAL; dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- if (mutex_lock_interruptible(&dmxdev->mutex)) dvb/dvb-core/dmxdev.c- return -ERESTARTSYS; dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- for (i = 0; i < dmxdev->filternum; i++) dvb/dvb-core/dmxdev.c- if (dmxdev->filter[i].state == DMXDEV_STATE_FREE) dvb/dvb-core/dmxdev.c- break; dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- if (i == dmxdev->filternum) { dvb/dvb-core/dmxdev.c- mutex_unlock(&dmxdev->mutex); dvb/dvb-core/dmxdev.c: return -EMFILE; dvb/dvb-core/dmxdev.c- } dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- dmxdevfilter = &dmxdev->filter[i]; dvb/dvb-core/dmxdev.c- mutex_init(&dmxdevfilter->mutex); dvb/dvb-core/dmxdev.c- file->private_data = dmxdevfilter; dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- dvb_ringbuffer_init(&dmxdevfilter->buffer, NULL, 8192); dvb/dvb-core/dmxdev.c- dmxdevfilter->type = DMXDEV_TYPE_NONE; dvb/dvb-core/dmxdev.c- dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_ALLOCATED); dvb/dvb-core/dmxdev.c- dmxdevfilter->feed.ts = NULL; dvb/dvb-core/dmxdev.c- init_timer(&dmxdevfilter->timer); dvb/dvb-core/dmxdev.c- dvb/dvb-core/dmxdev.c- mutex_unlock(&dmxdev->mutex); dvb/dvb-core/dmxdev.c- return 0; dvb/dvb-core/dmxdev.c-}
IOW you ran out of filters. yes, the error code should probably be different (eg EBUSY).
So, why did I ran out of filters? Why did it happen? Why doesn't it happen on my other vdr box? And what does it cause? The recording did succeed.
\Kartsa